Colour contrast checker to check for accessibility issues.

mcp-axe is a MCP-compatible plugin for automated accessibility scanning

Robust, efficient and accurate accessibility testing tools for all Built on the world’s most popular accessibility testing library, axe-core. Deque’s suite of axe tools offers full coverage for your testing and compliance needs.

aDesigner is a disability simulator that helps designers ensure that their content and applications are accessible and usable by the visually impaired.

An open-source, automated tool to help you improve the quality of web pages. You can run it on any web page, public or requiring authentication.

Use TPGi's free colour contrast checker to optimize your content - including text and visual elements - for individuals with color-blindness or low vision impairments.